Costco Wholesale Corp. (COST) late Wednesday said that its October net sales rose 4.5% to $18.53 billion, from $17.73 billion in October 2022. Costco same-store sales rose 3%, and e-commerce sales, which during the height of the pandemic grew by double-digit numbers for several months, rose 3.7%. Costco shares were flat in the after-hours session after a 0.8% advance in the regular trading day.